Uplink Nonorthogonal Multiple Access Technologies Toward 5G: A Survey

Table 1

Summery of existing surveys about NOMA.

Survey	Scope	Contributions
[13]	Power-domain NOMA	A comprehensive survey about power domain-NOMA, as well as the related designs.
[14]	NOMA schemes	Review of power-domain and code-domain NOMA schemes
[15]	NOMA schemes and waveforms	Review of some NOMA schemes and nonorthogonal waveforms.
[16]	NOMA schemes	Review of some NOMA schemes towards 5G, as well as the application scenarios and typical receivers.
[17]	Theoretical analysis of NOMA	Review of the theoretical analysis about power-domain NOMA and cognitive radio inspired NOMA.
[18]	Downlink NOMA	Industrial view about downlink NOMA in 5G.